PLOT

        [PDBI\]PLOT [LINE|NARROW|WIDEX]
      or
        [ALMA\]PLOT [FREQUENCY|BASEBAND i]
      or
        [PICO\]PLOT
             [/LIMITS min max]
             [/MOLECULES FileName [Mol1 Mol2 ... Moln]]
             [/WIDTH width]
             [/SPURIOUS [NO]]
             [/ATMOSPHERE [water]]


    The PLOT command is used to change the plot options and update the  plot
    accordingly.  Except  for  some restrictions on /LIMITS, the options are
    valid for all observatories.

    Three types of plots can be produced for the Plateau de Bure:

    o LINE mode = plot of the LSB and USB (as produced by the LINE command).
    Note that the new generation receivers at PdBI are single-side band: the
    image sideband appears in light grey.  Widex and Narrow-band  units  are
    indicated.

    o  NARROW mode = SSB plot of the two selected entries of the narrow-band
    correlator. This plot is aimed at zooming on the two 1 GHz inputs of the
    correlator,  as  selected by the NARROW_INPUT command.  The position and
    width of the 8 spectral units are drawn.

    o WIDEX mode = plot of the WIDEX frequency coverage.

    Two types of plots can be produced for ALMA :

    o FREQUENCY mode = plot of the LSB and USB ouptut of the  receiver  band
    (as produced by the FREQUENCY command).

    o BASEBAND mode = plot of the baseband #i. The position and width of the
    spectral windows defined with SPWINDOW are also drawn.

    After each of the LINE, NARROW_BAND, SPECTRAL  or  WIDEX  commands,  the
    plot is updated.